Category Archives: Software

Bun is a fast all-in-one JavaScript runtime

Posted on August 25, 2022 by Giovanni Giorgi
As a mid-life greabeard that started my career on Z/OS / MVS writing JCL and running COBOL and SAS jobs, I like JavaScript. It doesn’t have the obtuseness of C, the ultra-strict type-checking of Pascal, the verbosity of COBOL, class … Continue reading →
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Il database con due tabelle

Posted on August 12, 2022 by Giovanni Giorgi
In questo articolo del 2012, si legge che Reddit avrebbe un database da due tabelle. Le due tabelle si chiamano “Cose” e “Dati” (i.e. attributi delle cose). “Cose” contiene una riga per ogni oggetto del sistema (utenti, forum, ecc) e … Continue reading →
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Log4jShell

Posted on December 20, 2021 by Giovanni Giorgi
Log4jShell vulnerability Kasperky article https://www.lunasec.io/docs/blog/log4j-zero-day-update-on-cve-2021-45046/ with the following “news”:If you have previously used LOG4J_FORMAT_MSG_NO_LOOKUPS to mitigate the log4shell vulnerability, in certain conditions this will not be sufficient to protect your code from RCE. Refer to our mitigation guide for additional steps … Continue reading →
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Ubuntu 20 LTS failed me (only for servers install…:)

Posted on September 20, 2021 by Giovanni Giorgi
On 2023 Ubuntu 18 LTS support will end, so I started to evaluate the next LTS release, Ubuntu 20.
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Open calculator (aggiornato)

Posted on July 15, 2021 by Giovanni Giorgi
Voglio raccontarvi una storia, per spiegarvi quanto è difficile conciliare la vendita di un prodotto commerciale con lo sviluppo di un software “open”. Al giorno d’oggi le calcolatrici scientifiche sono un mercato con parecchia concorrenza, e lo prenderò come esempio. … Continue reading →
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Meltdown and Spectre Mitigation removal

Posted on June 23, 2021 by Giovanni Giorgi
Some time ago I stumbled upon this Hacker News discussion on how disable Spectre mitigation. (For what Meltdown and Spectre is, refer to this article on 2018) It is sad to say but my Intel NUC centrino was slowed down … Continue reading →
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Legacy Management

Posted on February 10, 2021 by Giovanni Giorgi
Good insights from this article: How to strangle a legacy codebase The strategy is simple: Progressively delete the old code base, in favor of a new one. Here’s the plan: Have the new code acts as a proxy for the old … Continue reading →
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